Er shi shi ji ke xue ji shu di jin zhan
By: Hua Lin, Mei Yang bian yi
Edition: Di 1 ban
Publisher: Ke xue pu ji chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1981
Place of publication: Beijing
Language: chi
Number of pages: 125
Other titles: 20 shi ji ke xue ji shu di jin zhan.